| 초록 |
Inorganic nanoparticles (NPs) have been investigated in various area due to their fascinating features. Au NPs have a lot of interests due to their good accessibility to surface modification with various thiol terminated polymer. For this reason Janus Au NPs can be easily synthesized via tuning the surface property of Au NPs with two different ligands. We were successfully able to synthesize the thermally stable Janus Au NPs with thiol terminated polystyrene (PS) and poly(methyl methacrylate) (PMMA). To characterize the Janus properties of Au NPs, we investigated the location of the NPs in lamellar forming PS-b-PMMA. However, it is hard to confirm phase separation of the ligands on the Au NPs. Herein, we prepared Janus Au NPs using deuterated PS and PMMA, and normal Au NPs using dPS-r-PMMA ligands which have various ligand lengths for small angle neutron scattering (SANS) study. As the ligands characteristics are changed, the phase behaviors of the ligands on the Au NPs are different. |
